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Multilevel Systems
Section 2-5
19
Another aspect of Remote I/O Systems demonstrated by this diagram is the
presence of Expansion I/O Racks, both connected to a CPU Rack and to
Slave Racks. Although normally not shown in system diagrams for Link Sys-
tems, Expansion I/O Racks can be used to increase the number of I/O Units
mountable at any one location.
C200H CPU Rack
Expansion I/O Rack
Expansion I/O Rack
Expansion I/O Rack
C200H Optical Slave Rack
Remote
Terminal
Remote
Terminal
C500 Wired Slave Rack
Optical I/O Units
C2000H
CPU Rack
C200H Wired Slave Rack
C200H Optical Slave Rack
Optical Slave
Optical
Slave
Optical Master
Wired Master
Optical cable
Wire cable
Wire cable
Wire cable
Wire cable
Wired
Slave
Optical
Master
I/O Link Unit
Wired
Slave
Optical cable
Optical cable
Optical cable
Wire cable Wire cable
Wire cable
Wire cable
Optical cable